Actually, I live in NJ, commute to NY (though not by car, though I do walk around the city a lot) and drive down to DC often. In my opinion the very worst tailgaters in the United States are Maryland plates in the DC area.
I’ll take your word for it. I’m usually not so definitively and sweepingly critical, but I”m so tired of the urban left looking down their noses at everyone who doesn’t think like them. It’s much more than just annoying.